General Diesel

General Diesel is a heavy-duty truck repair shop based in North Charleston, South Carolina, and you bring the RV to its shop at 2150 Iron Rod Court rather than having a tech come to you. The site notes that roadside and mobile assistance runs through a separate company, Southeastern Fleet Services, so if your rig is stuck on the road, that is who handles the tow or the call, not General Diesel itself.

Once it is at the shop, the RV repair work covers diesel engines, transmissions, clutches, drivelines and differentials, along with brake and suspension repair covering leaf springs, shocks and steering components. It also handles cooling system work on radiators, water pumps, thermostats, fan clutches and hoses, plus electrical and diagnostic troubleshooting for warning lights, charging systems and wiring faults, and preventive maintenance like fluid service, filters and inspections. "Our skilled team passionately caters to the diverse needs of diesel vehicles throughout Charleston, Dorchester, and Berkeley counties."

No hourly rate, trip fee, diagnostic fee or hours are published, so ask about the hourly rate and diagnostic fee when you call to book.

The shop runs on ASE-certified mechanics and works across the engine brands common in diesel motorhomes, including Detroit Diesel, Cummins, CAT and Freightliner, which matters because a diesel RV chassis shares a lot with the heavy trucks this shop handles every day rather than being a side job. Google rates it 4.1 stars from 80 reviews.

This is a good fit for an owner of a diesel-powered motorhome in the Charleston, Dorchester or Berkeley county area who needs engine, drivetrain, brake, cooling or electrical work done and can bring the rig in, rather than someone stranded roadside looking for a tech to come to them.